EP 0809923 B1 19990811 - CIRCUIT FOR OPERATING A DISCHARGE LAMP
Title (en)
CIRCUIT FOR OPERATING A DISCHARGE LAMP
Title (de)
SCHALTUNGSANORDNUNG ZUM BETRIEB EINER ENTLADUNGSLAMPE
Title (fr)
CIRCUIT DESTINE AU FONCTIONNEMENT D'UNE LAMPE A DECHARGE
Publication
Application
Priority
- DE 9600198 W 19960208
- DE 19505459 A 19950217
Abstract (en)
[origin: DE19505459A1] The invention concerns a circuit for operating a discharge lamp with a half-bridge generator (T1, T2), wherein a turn-off transistor (T3) can stop the half-bridge generator. The energy source for the base current of the turn-off transistor (T3) is formed by a starter capacitor (C3) which starts the half-bridge generator (T1, T2). In addition, the collector-emitter section of the turn-off transistor (T3) is directly between the base of the lower transistor (T2) of the half-bridge generator and earth.
IPC 1-7
IPC 8 full level
H05B 41/24 (2006.01); H05B 41/285 (2006.01)
CPC (source: EP KR US)
H05B 41/282 (2013.01 - KR); H05B 41/285 (2013.01 - EP US); Y02B 20/00 (2013.01 - EP US)
Designated contracting state (EPC)
BE CH DE DK ES FR GB IT LI NL SE
DOCDB simple family (publication)
DE 19505459 A1 19960822; CA 2213247 A1 19960822; CN 1136763 C 20040128; CN 1174652 A 19980225; DE 59602714 D1 19990916; DK 0809923 T3 20000320; EP 0809923 A1 19971203; EP 0809923 B1 19990811; ES 2136973 T3 19991201; FI 973340 A0 19970814; FI 973340 A 19970814; JP H11500256 A 19990106; KR 100374078 B1 20030712; KR 19980702219 A 19980715; US 5883472 A 19990316; WO 9625833 A1 19960822
DOCDB simple family (application)
DE 19505459 A 19950217; CA 2213247 A 19960208; CN 96191956 A 19960208; DE 59602714 T 19960208; DE 9600198 W 19960208; DK 96901712 T 19960208; EP 96901712 A 19960208; ES 96901712 T 19960208; FI 973340 A 19970814; JP 52457296 A 19960208; KR 19970705614 A 19970814; US 89405397 A 19970812